1. Samaritan

After young police constable Nick Bentley (Ashley Rolfe) gets caught in a war between two drug dealers he is shot and killed in the crossfire. His partner, PC Ray Griffin ( Jamie Foreman ), says Nick shouldn't have been on his own but they got separated while on foot patrol. Brooks and Devlin think it's a tragic but pretty straightforward case and eventually locate a witness who identifies one of the parties to the drug transaction. They soon catch drug dealer Theo Carson ( Ashley Chin ). Carson shocks them and their boss, DI Natalie Chandler, when he tells them he saw another police constable standing in the shadows while the injured policeman was calling for help.

Brooks and Devlin find an anomaly in Griffin's formal statement and things get tense within the police force when they start questioning fellow police officers. Brooks and Devlin discover that Nick was gay and that Bentley's fellow constables had recently learned of his sexual orientation, also that Griffin is the head of a radical Christian group with homophobic tendencies. At the CPS, James Steel and Alesha Phillips think they can prove Griffin was duty-bound to help his dying partner. But their boss, George Castle, doesn't agree. He doesn't want to upset the working relationship they have with the police and thinks the force won't be with them. James and Alesha don't want to let Griffin off the hook, though and argue that Griffin had a duty of care and was obliged to help his dying partner.